Because the shape is a cube, we know that all sides must be 5cm. To find the area of a side, you do base × height, so 5 × 5 = 25. If you look at the net, you'll notice that there are 6 faces, which means you have to do 25 × 6 = 150cm^2. I hope this helps!
What is the rest of the question?
Answer:
Step-by-step explanation:
281-28.5=252.5
252.5 divided by 0.4=631.25
X=631.25
Principal amount invested = P=$610
Interest rate =r= 4.1 % = 4.1/100 = 0.041 (decimal form)
Apply the compound interest formula:
A = P (1+r)^t
Where;
A = future value of investment = $900
t = years
Replace:
900 = 610 (1+0.041)^t
Solve for t:
900/610 = (1+0.041)^t
90/61 = 1.041^t
Ln (90/61) = Ln (1.041)^t
Ln (90/61) = t (Ln (1.041))
Ln (90/61) / ln (1.041) = t
t = 9.67 years = 10 years
Ok so you have to know the formula density=mass/volume (density is the measure of how much mass is in each unit of volume)
the mass, as measured is 12.9 g
for the volume, to find the volume of the cube multiply the length times the width times the height. Or , since it's a cube, just cube 8
V=8*8*8=512 cm^3
therefore, density= 12.9 g/512 cm^3
since you need to have 1 cm^3 on the bottom, this simplifies to about
.025 g/cm^3
